CN213451422U

CN213451422U - Mine hoist arresting gear

Info

Publication number: CN213451422U
Application number: CN202022293293.0U
Authority: CN
Inventors: 何新建
Original assignee: Zhengzhou Huixinyuan Mining Machinery Co ltd
Current assignee: Zhengzhou Huixinyuan Mining Machinery Co ltd
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-06-15
Anticipated expiration: 2030-10-14

Abstract

The utility model relates to a mine hoist arresting gear relates to mine hoist's field, including the main shaft, be connected with at least one brake disc on the main shaft, brake disc one side has erect the stand, and vertical slip has the braking piece that is close to brake disc below and supports tight brake disc on the stand, and stand one side is fixed with the pneumatic cylinder that output and braking piece are connected. This application has the effect of being convenient for brake lifting machine.

Description

Mine hoist arresting gear

Technical Field

The application relates to the field of mine hoists, in particular to a brake device of a mine hoist.

Background

The mine hoist is a hoisting machine which is arranged on the ground in mining engineering and drives a hoisting container to run along a shaft or a slope by means of a stranded rope. It is used for lifting coal, ore and gangue, lifting personnel, lowering materials, tools and equipment in vertical and inclined shafts. The mine hoisting machine comprises a brake, and the brake has the functions of: when the hoister works, the roller wound with the twisted rope can be reliably braked; participating in the control of the hoister in the deceleration stage and during the weight lowering; in case of emergency, the elevator can be braked safely and stopped quickly to avoid the expansion of accident.

The braking device of some small-sized elevators adopts a hand wheel to perform manual braking, can meet the use requirements under the working conditions of low requirement on braking force and infrequent braking, but is used under the working conditions of high requirement on braking force and frequent braking, so that the labor intensity of operators is improved, and potential safety hazards exist.

In view of the above-mentioned related art, the inventors consider that there is a drawback that the hoist is inconvenient to brake.

SUMMERY OF THE UTILITY MODEL

In order to facilitate braking of the hoisting machine, the application provides a braking device of the mine hoisting machine.

The application provides a mine hoist arresting gear adopts following technical scheme:

the utility model provides a mine lifting machine arresting gear, includes the main shaft, is connected with at least one brake disc on the main shaft, and brake disc one side is erect and is had the stand, and vertical slip has the braking piece that is close to brake disc below and supports tight brake disc on the stand, and stand one side is fixed with the pneumatic cylinder that output and braking piece are connected.

Through adopting above-mentioned technical scheme, the output extension of pneumatic cylinder, its drive braking piece is close to the brake disc under the support of stand to contradict with the brake disc, make the brake disc stop through relative friction. The main shaft fixed with the brake disc is quickly stopped, and braking is convenient.

Optionally, the brake pad is an arc-shaped plate matched with the circumferential radian of the brake disc.

By adopting the technical scheme, the contact area between the arc-shaped brake pad and the brake disc is larger, and the brake is quicker.

Optionally, an elastic isolation pad is fixed on the inner arc side wall of the brake pad, a friction plate is fixed on the isolation pad, and a fastening screw penetrating through the brake pad, the isolation pad and the friction plate is screwed on the brake pad.

By adopting the technical scheme, when the friction plate contacts the brake disc, the brake disc is decelerated until the brake disc stops due to relative friction, the impact on the friction plate is buffered by the isolating pad, the impact force impacting on the brake plate is reduced, and the brake plate and the hydraulic cylinder connected with the brake plate are protected.

Optionally, the contact surface of the isolation pad and the friction plate is a serrated surface.

By adopting the technical scheme, the friction plate is contacted with the isolating pad in rotation and can be subjected to force rotating along the circumferential direction, and the connection of the friction plate and the isolating pad is more stable due to the zigzag connection mode.

Optionally, a vertical through groove is formed in the column, a connecting rod is fixed to one end of the brake pad, the connecting rod is inserted into the through groove and is in sliding connection with the through groove, a hydraulic cylinder is fixed in the through groove below the connecting rod, and the output end of the hydraulic cylinder is fixed to the connecting rod.

Through adopting above-mentioned technical scheme, the output of pneumatic cylinder passes through the control lever and the connecting rod drive braking piece slides from top to bottom along logical groove, thereby makes braking piece automatic conflict brake disc braking main shaft, and the operation is convenient.

Optionally, vertical limiting grooves are formed in two sides of the through groove, limiting blocks are fixed on the connecting rods, and the limiting blocks are inserted into the limiting grooves and are in sliding connection with the limiting grooves.

Through adopting above-mentioned technical scheme, the stopper slides in the spacing inslot, has restricted the connecting rod and can only follow logical groove vertical sliding, and can not control and rock, makes the braking piece more stable when leading to the inslot vertical sliding.

Optionally, the stand top is rotated and is connected with the dwang, and dwang one end is fixed with and rotates the butt piece that is close to and supports tight brake disc.

Through adopting above-mentioned technical scheme, the butt piece is contradicted with the brake disc after being close to the brake disc, with brake disc relative friction, makes the brake disc further slow down to butt piece and braking piece make brake disc both sides atress balanced mutually, and are more stable.

Optionally, the end of the connecting rod extends out of the through groove and is rotatably connected with a push rod, one end of the push rod is rotatably connected with the connecting rod, and the other end of the push rod is rotatably connected with the end of the rotating rod.

Through adopting above-mentioned technical scheme, when pneumatic cylinder drive braking piece motion, the catch bar moves along with the connecting rod, and when the braking piece was close to the brake disc, the butt piece was close to the brake disc simultaneously to balanced braking piece makes the braking piece more stable.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the output end of the hydraulic cylinder extends, the hydraulic cylinder drives the brake pad to be close to the brake disc under the support of the upright column and to be abutted against the brake disc, the brake disc is stopped through relative friction, and the main shaft fixed with the brake disc is rapidly stopped;

2. when the friction plate contacts the brake disc, the brake disc is decelerated until the brake disc stops due to relative friction, the isolation pad buffers the impact on the friction plate, the impact force on the brake plate is reduced, and the brake plate and a hydraulic cylinder connected with the brake plate are protected;

3. the butt piece is contradicted with the brake disc after being close to the brake disc, with brake disc relative friction, makes the brake disc further slow down.

Drawings

FIG. 1 is a schematic overall structure of the present application;

FIG. 2 is a schematic view of the brake apparatus of the present application;

FIG. 3 is a cross-sectional view of a brake pad configuration of the present application;

fig. 4 is a schematic diagram of the structure of the present application in which the brake disc is tightened.

Description of reference numerals: 1. a support; 2. a main shaft; 3. a reel; 4. a brake disc; 41. a groove; 5. a column; 6. a through groove; 61. a limiting groove; 7. a brake pad; 8. a connecting rod; 9. a limiting block; 10. a hydraulic cylinder; 11. an insulating pad; 12. a friction plate; 13. fastening a screw rod; 14. heat dissipation holes; 15. rotating the rod; 16. a butting block; 17. a push rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses mine hoist arresting gear. Referring to fig. 1 and 2, the mine hoist includes a spindle device, the spindle device includes a plurality of supports 1, a spindle 2 is rotatably connected between the supports 1, one end of the spindle 2 is connected with a motor (not shown in the figure), a plurality of winding drums 3 are arranged on the spindle 2, and a set of braking devices are arranged on the spindle 2 at two ends of each winding drum 3.

The braking device comprises braking discs 4 fixed on the main shaft 2 at two ends of the winding drum 3, the diameter of the braking discs 4 is larger than that of the main shaft 2, and grooves 41 are arranged on the circumferential surface of each braking disc 4. Arresting gear is still including erectting at the stand 5 of 4 one sides of brake disc, has seted up vertical logical groove 6 on the stand 5, leads to groove 6 and 5 a pair of lateral walls intercommunications of stand, leads to all being provided with spacing groove 61 on the 6 both sides inner walls of groove, spacing groove 61 and the lateral wall intercommunication of stand 5.

A brake pad 7 is arranged on the lower side of the brake disc 4, and the brake pad 7 is an arc-shaped plate matched with the circumferential radian of the brake disc 4. One end of the brake pad 7 is fixed with a connecting rod 8, the end part of the connecting rod 8 is inserted into the through groove 6, the end part of the connecting rod 8 extends out from the other side of the through groove 6, and two sides of the connecting rod 8 are also provided with limit blocks 9 sliding in the limit grooves 61.

A hydraulic cylinder 10 is arranged in the through groove 6, and the output end of the hydraulic cylinder 10 is fixed with the bottom end of the connecting rod 8. When the output end of the hydraulic cylinder 10 extends, the connecting rod 8 pulls the brake pad 7 to move vertically upwards to be close to the brake disc 4.

Referring to fig. 3, a strip-shaped isolating pad 11 with a saw-tooth-shaped cross section is fixed on the inner arc surface of the brake pad 7, the isolating pad 11 has elasticity, a friction plate 12 is fixed on the isolating pad 11, and the surface of the friction plate 12, which is in contact with the isolating pad 11, is saw-tooth-shaped, so that the friction plate is clamped with the isolating pad 11. And a fastening screw 13 is screwed on the friction plate 12, and the fastening screw 13 penetrates through the isolation pad 11 and then is screwed on the brake plate 7.

When the brake pad 7 is close to the brake disc 4, the friction plate 12 enters the groove 41, the friction plate 12 firstly contacts the brake disc 4, the isolation pad 11 buffers the impact on the friction plate 12, the impact shaking on the brake pad 7 is further reduced, the friction plate 12 receives the friction force of the brake disc 4 along the arc direction, and the joint of the friction plate 12 and the isolation pad 11 is in a sawtooth shape, so that the friction plate 12 and the isolation pad are connected more tightly. Meanwhile, a plurality of heat dissipation holes 14 are formed in the brake plate 7 and the isolation pad 11, and after the friction plate 12 and the brake disc 4 are in contact to generate heat, the heat dissipation holes 14 enable the generated heat to be dissipated more quickly.

Referring to fig. 2 and 4, a rotation rod 15 is rotatably connected to the top of the upright post 5, and the center of the rotation rod 15 is hinged to the top end of the upright post 5 through a hinge shaft. One end of the rotating rod 15 is fixed with an abutting block 16, the other end is hinged with a push rod 17, and the other end of the push rod 17 is hinged on one end of the connecting rod 8 extending out of the through groove 6. Therefore, when the hydraulic cylinder 10 pushes the connecting rod 8 to move vertically upwards, the push rod 17 pushes one end of the rotating rod 15 to rotate upwards, the push rod 17 rotates around the axis of the hinge shaft, the abutting block 16 abuts against the brake disc 4 to rub against the brake disc 4, and the brake disc 4 is connected with the main shaft 2 to further reduce the speed. And the butt-joint block 16 and the brake pad 7 enable the stress on two sides of the brake disc 4 to be balanced and more stable.

The implementation principle of the mine hoist braking device in the embodiment of the application is as follows: when the elevator is to be braked, the output end of the hydraulic cylinder 10 is first driven to extend, the hydraulic cylinder 10 pushes the connecting rod 8 to slide vertically upwards along the through groove 6, the brake pad 7 is close to the brake disc 4, and the friction pad 12 is in contact with the surface of the brake disc 4. Meanwhile, the push rod 17 pushes one end of the rotating rod 15 to rotate upwards, the push rod 17 rotates around the axis of the hinge shaft, the abutting block 16 abuts against the brake disc 4, therefore, the brake disc 7 and the abutting block 16 abut against the brake disc 4, and the brake disc 4 drives the main shaft 2 to decelerate.

When the elevator stops, the output end of the driving hydraulic cylinder 10 retracts, the hydraulic cylinder 10 pushes the connecting rod 8 to vertically slide downwards along the through groove 6, the brake disc 4 is far away from the brake disc 7, the friction plate 12 is not in contact with the brake disc 4, meanwhile, the push rod 17 pulls one end of the rotating rod 15 to rotate downwards, the push rod 17 rotates around the axis of the hinged shaft, and the abutting block 16 is far away from the brake disc 4.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a mine lifting machine arresting gear which characterized in that: the brake device comprises a main shaft (2), wherein at least one brake disc (4) is connected to the main shaft (2), an upright post (5) is vertically arranged on one side of the brake disc (4), a brake pad (7) which is close to the lower part of the brake disc (4) and tightly supports the brake disc (4) vertically slides on the upright post (5), and a hydraulic cylinder (10) with an output end connected with the brake pad (7) is fixed on one side of the upright post (5).

2. The mine hoist braking device of claim 1, wherein: the brake pad (7) is an arc-shaped plate matched with the circumferential radian of the brake disc (4).

3. The mine hoist braking device of claim 2, wherein: an elastic isolation pad (11) is fixed on the inner arc side wall of the brake pad (7), a friction plate (12) is fixed on the isolation pad (11), and a fastening screw (13) penetrating through the brake pad (7), the isolation pad (11) and the friction plate (12) is screwed on the brake pad (7).

4. The mine hoist braking device of claim 3, wherein: the contact surface of the isolating pad (11) and the friction plate (12) is a serrated surface.

5. The mine hoist braking device of claim 1, wherein: vertical through grooves (6) are formed in the stand columns (5), connecting rods (8) are fixed to one ends of the brake blocks (7), the connecting rods (8) are inserted into the through grooves (6) and are in sliding connection with the through grooves (6), hydraulic cylinders (10) are fixed in the through grooves (6) below the connecting rods (8), and output ends of the hydraulic cylinders (10) are fixed to the connecting rods (8).

6. The mine hoist braking device of claim 5, wherein: vertical limiting grooves (61) are formed in two sides of the through groove (6), a limiting block (9) is fixed on the connecting rod (8), and the limiting block (9) is inserted into the limiting grooves (61) and is in sliding connection with the limiting grooves (61).

7. The mine hoist braking device of claim 5, wherein: the top of the upright post (5) is rotatably connected with a rotating rod (15), and one end of the rotating rod (15) is fixed with a butt joint block (16) which rotates to be close to and butt against the brake disc (4).

8. The mine hoist braking device of claim 7, wherein: the end part of the connecting rod (8) extends out of the through groove (6) and is rotatably connected with a push rod (17), one end of the push rod (17) is rotatably connected with the connecting rod (8), and the other end of the push rod is rotatably connected with the end part of the rotating rod (15).